September 2016
Volume 57, Issue 12
Open Access
ARVO Annual Meeting Abstract  |   September 2016
Comparison of Changes in Pupil Size Following Panretinal Retinal Photocoagulation: Conventional laser vs Pattern scan laser (PASCAL)
Author Affiliations & Notes
  • Irfan Perente
    Retina, Beyoglu Eye Training and Research Hospital, Istanbul, Turkey
  • Ihsan Yilmaz
    Retina, Beyoglu Eye Training and Research Hospital, Istanbul, Turkey
  • Basak Saracoglu
    Retina, Beyoglu Eye Training and Research Hospital, Istanbul, Turkey
  • Ahmet Taylan Yazici
    Retina, Beyoglu Eye Training and Research Hospital, Istanbul, Turkey
  • Muhittin Taskapili
    Retina, Beyoglu Eye Training and Research Hospital, Istanbul, Turkey
  • Footnotes
    Commercial Relationships   Irfan Perente, None; Ihsan Yilmaz, None; Basak Saracoglu, None; Ahmet Taylan Yazici, None; Muhittin Taskapili, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science September 2016, Vol.57, 5857. doi:
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      Irfan Perente, Ihsan Yilmaz, Basak Saracoglu, Ahmet Taylan Yazici, Muhittin Taskapili; Comparison of Changes in Pupil Size Following Panretinal Retinal Photocoagulation: Conventional laser vs Pattern scan laser (PASCAL). Invest. Ophthalmol. Vis. Sci. 2016;57(12):5857.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : To evaluate and compare the possible changes in pupil size subsequent to panretinal laser photocoagulation via Conventional laser and pattern scan laser (PASCAL).

Methods : Forty eyes of 40 patients with diabetic retinopathy were included. 20 eyes had a panretinal photocoagulation via conventional laser and formed Group1. 20 eyes had a panretinal photocoagulation via PASCAL laser and formed Group2. The participants underwent full ophthalmologic examination at baseline. Automated infrared pupillometry were performed at baseline and month 1.

Results : The mean pupillary measurements (mm) for Group1 (in order photopic, mesopic, scotopic) were 2.88±0.34, 3.38±0.40, 3.95±0.38 and changed to 3.64±0.42, 4.18±0.42, 4.58±0.48. There was significant increase in pupil size at month 1 (p<.001, p<.001, p<.001). For Group2 they were 2.90±0.38, 3.43±0.36, 3.90±0.40 and changed to 3.18±0.42, 3.74±0.36, 4.10±0.38. There was significant increase in pupil size at month 1 (p=.018, p=.014, p=.014). The pupil size increased significantly in both groups in all illumination conditions.

Conclusions : We have demonstrated via automated infrared pupillary measurements that panretinal laser photocoagulation may significantly influence pupil size whether its performed with conventional laser or PASCAL laser.

This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.

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